//获取cookie
export function getCookie(name){
    var cookieName = encodeURIComponent(name) + "=",
    cookieStart = document.cookie.indexOf(cookieName),
    cookieValue = null;
    if (cookieStart > -1){
        var cookieEnd = document.cookie.indexOf(";", cookieStart);
        if (cookieEnd == -1){
            cookieEnd = document.cookie.length;
        }
        cookieValue = decodeURIComponent(document.cookie.substring(cookieStart
            + cookieName.length, cookieEnd));
    }
    return cookieValue;
}
//设置cookie
export function setCookie(name, value, expires, path, domain, secure) {
    var cookieText = encodeURIComponent(name) + "=" +
    encodeURIComponent(value);
    if (expires instanceof Date) {
    cookieText += "; expires=" + expires.toGMTString();
    }
    if (path) {
    cookieText += "; path=" + path;
    }
    if (domain) {
    cookieText += "; domain=" + domain;
    }
    if (secure) {
    cookieText += "; secure";
    }
    document.cookie = cookieText;
}
//删除cookie
export function delCookie(name, path, domain, secure){
    setCookie(name, "", new Date(0), path, domain, secure);
}